By: Dorian C. Hardin-Hebert
Michel’le C. Simpson
Kevinique M. Walker-Smith
A graph in which horizontal or vertical bars represents data
It’s used to visually display frequencies or percentages
and can be used to compare data.
Changing Scale- Whenever you use a change in scale
in a graphic, warn the viewer by using a squiggle
On the changed axis. Sometimes, if a single bar is
usually long, the bar length is compressed with a
squiggle in the bar itself.
Pareto Chart- is a bar graph in which the bar height
represents frequency of an event. In addition, the bars
are arranged from left to right according to decreasing
height.
1. Bars can be vertical or horizontal.
2. Bars are of uniform width and uniformly spaced.
3. The lengths of the bars represent values of the
variable being displayed, the frequency of
occurrence, or the percentage of occurrence. The
same measurement scale is used for the length of
each bar.
4. The graph is well annotated with title,, labels for
each bar, and vertical scale or actual value for the
length of each bar.
7
6
5
Mexican
Chinese
Italian
Seafood
4
3
2
1
0
First Pick
First Pick
• We conducted a quick and easy survey to
gather information from our class of 13
students and 1 teacher.
• We picked four popular food groups and
asked each person to pick a first favorite
pick and a second favorite pick.
• Then, transferred the information to the
format of a bar graph!!!
7
6
5
4
Mexican
Chinese
Italian
Seafood
3
2
1
0
First Pick
Second
Pick
•How many more students prefer
seafood and Chinese food as a first
pick than a second pick.
S+C=9
2 +7=9
S+C=8
6+2=8
9-8= 1 person
•Understandable Statistics by
Houghton Mifflin.
•AP Statistics 6th Block Class